Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-63974
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-19 16:17:16 UTC
Updated2026-07-20 15:16:59 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close Since hci_dev_close_sync() can now be called during the reset path, we should also set HCI_CMD_DRAIN_WORKQUEUE. This avoids queuing timeouts while the hdev workqueue is being drained.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.002000000 probability, percentile 0.100210000 (date 2026-07-20)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 877afadad2dce8aae1f2aad8ce47e072d4f6165e 9cebe4680bb9a72f80c6541eb24af06db7a1fbc9 git Not specified
CNA Linux Linux affected 877afadad2dce8aae1f2aad8ce47e072d4f6165e 47330cc875b36a1cf7b3543cb2cf90a7c603ce0e git Not specified
CNA Linux Linux affected 877afadad2dce8aae1f2aad8ce47e072d4f6165e 60bceb9a4c693e68cc90ba4b2dfb9e000e8638ff git Not specified
CNA Linux Linux affected 877afadad2dce8aae1f2aad8ce47e072d4f6165e 525daaea459fc215f432de1b8debbd9144bf97b0 git Not specified
CNA Linux Linux affected 4bf367fa1fefabdf14938d0ac9ed60020389112e git Not specified
CNA Linux Linux affected 3b382555706558f5c0587862b6dc03e96a252bba git Not specified
CNA Linux Linux affected 5.18.18 5.19 semver Not specified
CNA Linux Linux affected 5.19.2 5.20 semver Not specified
CNA Linux Linux affected 6.0 Not specified
CNA Linux Linux unaffected 6.0 semver Not specified
CNA Linux Linux unaffected 6.12.93 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.35 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.12 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/9cebe4680bb9a72f80c6541eb24af06db7a1fbc9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/60bceb9a4c693e68cc90ba4b2dfb9e000e8638ff 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/525daaea459fc215f432de1b8debbd9144bf97b0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/47330cc875b36a1cf7b3543cb2cf90a7c603ce0e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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